13155-83-4Relevant articles and documents
The influence of the framework: An anion-binding study using fused [n]polynorbornanes
Long, Benjamin M.,Pfeffer, Frederick M.
supporting information, p. 1091 - 1098 (2014/04/17)
A series of bis-thiourea-functionalized [n]polynorbornane hosts (1-6) with increasing size were synthesized and their anion-binding properties were evaluated by using 1HNMR spectroscopic titration and Job's plot analysis. The larger bis-thiourea-[3]polynorbornane scaffolds 4 and 5 bound acetate in a 1:1 (cooperative) arrangement, whereas the corresponding smaller norbornane host 2, identical in preorganization, bound acetate in a 1:2 (independent) arrangement. In contrast, the size of the framework had no influence on the binding of dihydrogenphosphate. These results clearly highlight the subtle influence that the framework itself can have on host-guest interactions. One anion or two? A series of bis-thiourea-functionalized [n]polynorbornane hosts (1-6) with increasing size were synthesized and their anion-binding properties were evaluated by using 1HNMR spectroscopic titration and Job's plot analysis. Our results highlight the subtle influence that the framework itself can have on host-guest interactions.
Microwave-accelerated ruthenium-catalyzed [2π+2π] cycloadditions of dimethylacetylene dicarboxylate with norbornenes
Margetice, Davor,Troselj, Pavle,Murata, Yasujiro
experimental part, p. 1239 - 1246 (2011/05/05)
An efficient and convenient procedure has been developed for the ruthenium-catalyzed [2π+2π] cycloadditions of dimethylacetylene dicarboxylate with norbornenes. Reaction is significantly accelerated in microwave conditions, while the commonly used benzene
Rhenium-catalyzed [2 + 2] cycloadditions of norbornenes with internal and terminal acetylenes
Kuninobu, Yoichiro,Yu, Peng,Takai, Kazuhiko
, p. 1162 - 1163 (2008/02/12)
Treatment of norbornenes with internal and terminal acetylenes in the presence of a catalytic amount of [ReBr(CO)3(thf)]2 gave cyclobutene derivatives in good to excellent yields. Copyright